Sidewalk tile



FIG. 1 is a top plan view of a sidewalk tile showing my new design; and,

FIG. 2 is a side elevation view of the sidewalk tile of FIG. 1.

The portions of the article shown in dashed lines in the FIGURES illustrate features that form no part of the claimed design. The dash-dot-dash lines illustrate boundaries and form no part of the claimed design. 

CLAIM The ornamental design for a sidewalk tile, as shown and described. 